Utilizing the concept of thermal expansion, design and FULLY DESCRIBE a pendulum which exhibits length invariance due to temperature fluctuations...note that this could be an important feature, since the length of a pendulum determines its period of oscillation. Be sure to include a schematic AND algebraic justification for your design.

Match the atomic particles with their characteristics. 1. made of two protons and two neutrons neutron 2. similar to an electron; positive charge neutrino 3. orbits nucleus; negative charge positron 4. bundle of energy; zero charge proton 5. found in nucleus; positive charge meson 6. very unstable; +, -, or zero charge gamma 7. found in nucleus; zero charge electron 8. negative particle; negative charge beta 9. atomic energy converted to mass alpha

Which surface feature of the moon is characterized by mountainous areas? terrae craters maria regolith

A500g object falls off a cliff and losers 100 j from its gravitational potential energy store. if the gravitational field strength g=9.8n/kg, how high is the cliff?